and this was such a sconstant substantivive debate between romney and the president. you can't score that at all. there is an initial impression and a second impression that develops over time. how does that factor? we've seen it. they are going to try to grind down romney on the idea that he is a chia chameleon, who do you trust, to he really performed well. >> well, the group of undecideds showed that they didn't necessarily change their vote one way or the other. i think when you have -- paul ryan is not going to be able to do what mitt romney did. he was the chairman of the budget committee, for goodness sakes. it would be an affront to him to make up all of these numbers. >> let me switch to a different performance this week that got a lot of attention. i had the chance to sit down with a familiar face on this program, arnold schwarzenegger, former governor of california. recent revelations about his personal conduct have hurt his reputation, to say the very least. you have noticed he's been out this week with a new book called "total recall:my unbelievable true